Security alarm



FIG. 1 is a front, right-side, top perspective view of a security alarmshowing my new design;

FIG. 2 is a front elevational view of the security alarm shown in FIG.1;

FIG. 3 is a rear elevational view of the security alarm shown in FIG. 1;

FIG. 4 is a left-side elevational view of the security alarm shown inFIG. 1;

FIG. 5 is a right-side elevational view of the security alarm shown inFIG. 1;

FIG. 6 is a top plan view of the security alarm shown in FIG. 1; and,

FIG. 7 is a bottom plan view of the security alarm shown in FIG. 1.

CLAIM The ornamental design for a security alarm, as shown anddescribed.